Publication
Anaerobic digestion performance in the energy recovery of kiwi residues
| dc.contributor.author | Paulista, Larissa Oliveira | |
| dc.contributor.author | Boaventura, Rui | |
| dc.contributor.author | Martins, Ramiro | |
| dc.date.accessioned | 2020-04-06T09:44:06Z | |
| dc.date.available | 2020-04-06T09:44:06Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | World production and trade of fruits generate losses in the harvest, post-harvest, handling, distribution and consumption phases, corresponding to 6.8% of total production. These residues present high potential as a substrate for the anaerobic digestion process and biogas generation. Thus, the energy valuation of the agro-industrial residues of kiwifruit production was evaluated by anaerobic digestion, aiming at optimizing the biogas production and its quality. Ten assays were carried out in a batch reactor (500 mL) under mesophilic conditions and varying a number of operational factors: different substrate/inoculum ratios; four distinct values for C: N ratio; inoculum from different digesters; and inoculum collected at different times of the year. The following parameters were used to control and monitor the process: pH, alkalinity, volatile fatty acids (VFA), volatile solids (VS) and chemical oxygen demand (COD). Among the tests performed, the best result obtained for the biogas production corresponded to the use of 2 g of substrate and 98 mL of inoculum of the anaerobic digester of the Wastewater Treatment Plant (WWTP) of Bragança, with addition of 150 mg of bicarbonate leading to a production of 1628 L biogas.kg-1 VS (57% methane). In relation to the biogas quality, the best result was obtained with 20 g of substrate and 380 mL of inoculum from the anaerobic digester sludge of Ave WWTP (plus 600 mg of sodium bicarbonate), presenting a value of 85% of CH4, with a production of 464 L biogas.kg-1 VS. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Paulista, L.; Boaventura, Rui; Martins, Ramiro (2017). Anaerobic digestion performance in the energy recovery of kiwi residues. In WMESS 2017 World Multidisciplinary Earth Sciences Symposium. Prague | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10198/21530 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ | pt_PT |
| dc.subject | Anaerobic digestion | pt_PT |
| dc.subject | Kiwi waste | pt_PT |
| dc.subject | Energy recovery | pt_PT |
| dc.subject | Fruit residues | pt_PT |
| dc.title | Anaerobic digestion performance in the energy recovery of kiwi residues | pt_PT |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Prague, Czech Republic | pt_PT |
| oaire.citation.title | WMESS 2017 World Multidisciplinary Earth Sciences Symposium | pt_PT |
| person.familyName | Martins | |
| person.givenName | Ramiro | |
| person.identifier.ciencia-id | EA17-F39C-29C7 | |
| person.identifier.orcid | 0000-0003-4327-7782 | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | conferenceObject | pt_PT |
| relation.isAuthorOfPublication | bf713e37-c17f-4a4e-8323-a7b770a038bf | |
| relation.isAuthorOfPublication.latestForDiscovery | bf713e37-c17f-4a4e-8323-a7b770a038bf |